Water Filter

Different Types of water filters.

When you are in the outdoors, drinking clean water is essential to maintain good health. You might see a crystal clean looking water source, but there is no guarantee that it would always be safe. Drinking water from unknown sources can make you sick especially when there are livestock, humans, or wildlife in the area. The bacteria, viruses, and parasites breeding on the fecal matter could be living in the water. Today when you can have a portable water filter or purifier with you, why take chances by drinking water from any unknown water source.

Below are different factors you need to consider before buying a travel water filter for your needs

Firstly, you have to know if a water filter system can fulfill your purification needs. If not you have to buy a water purifier instead. Here are a few things that will help you decide on it.

What possible types of microorganisms you want to get rid of?

Water filters can get rid of different kinds of disease-causing bacteria, but they may not be effective in removing all viruses. Water purifiers, on the other hand, are more effective in getting rid of viruses along with other pathogens.

A water filter physically strains bacteria and protozoan cysts including

  1. Salmonella
  2. Shigella
  3. Campylobacter
  4. E Coli
  5. Giardia lamblia
  6. Cryptosporidium

Walter filters are suitable if you are hiking or camping in places having less or no known history of water-borne diseases like in Canada and U.S. However if you are traveling in crowded and less developed parts of the world,

water purifier will protect you from

  1. Norovirus
  2. Rotavirus
  3. Hepatitis

Working of water filters vs Purifiers

Filters come with an internal component, usually a cartridge with microscopic pores that trap protozoa, debris, and bacteria and give you strained water. The pores in the internal component are blocked over time and need cleaning or replacement.

The viruses that are too small for the pores in a water filter. They need to be killed other ways. This is done by water purifiers. Most purifiers use iodine as the chemical agent. The advanced water purifiers instead use UV rays to kill these pathogens. Other than removing pathogens, these purifiers also improve the taste of water by using activated carbon to remove odors and micropollutants. To use a UV purifier, one has to just push a button and wait for 60 seconds or so until the UV light turns off. The key benefit of using UV purifiers is that they work quickly to provide drinkable water. Also, a user doesn’t need to clean or replace any filter element. The main downside of UV purifiers is they need to be charged frequently. Moreover, these need prefilter if the water is muddy or cloudy. To produce large quantities of water, multiple treatments might be required depending on its capacity.

Whats the role of a pre-filter?

In the outdoors, especially in the wild, it is common for the water to get muddy and mixed with leaf debris, silt and stones. These particles may not affect your health but they can decrease the lifespan of the filters by clogging and causing damage. Using a pre-filter will eliminate the heavy duty contaminants and leave micro-particles for the filter to process. It improves the filtration process. Pre-filter comes attached with many pump style filters, if not you can buy it as an additional accessory. Pre-filter is necessary when you are UV purifying non-clear water.  

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